Case study:River Restoration at Hunworth (River Glaven)

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Location: 52° 52' 56.13" N, 1° 3' 56.48" E

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Project overview

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Status	Complete
Project web site	http://http://www.wildtrout.org/content/river-glaven-hunworth
Themes	Fisheries, Habitat and biodiversity, Hydromorphology, Land use management - agriculture
Country	England
Main contact forename	Ian
Main contact surname	Shepperd
Main contact user ID
Contact organisation	River Glaven Conservation Group
Contact organisation web site	http://http://www.riverglaven.co.uk/
Partner organisations	Environment Agency, Centre for Fisheries and Aquaculture Science, Wild Trout Trust
Parent multi-site project
This is a parent project encompassing the following projects	No

Looking downstream from the dismantled railway

Project summary

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Monitoring surveys and results

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Catchment and subcatchment

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Catchment

River basin district	Anglian
River basin	North Norfolk

Subcatchment

River name	Glaven
Area category	10 - 100 km²
Area (km2)
Maximum altitude category	100 - 200 m
Maximum altitude (m)	103103 m <br />0.103 km <br />10,300 cm <br />
Dominant geology	Calcareous
Ecoregion	Great Britain
Dominant land cover	Arable and Horticulture
Waterbody ID	GB105034055780

Other case studies in this subcatchment: Nine Chalk Rivers Project - Glaven Catchment, River Glaven conservation group

Site

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Name	Hunworth
WFD water body codes	GB105034055780
WFD (national) typology	Low, Small, Calcareous
WFD water body name	Glaven
Pre-project morphology	Straightened
Reference morphology	Sinuous
Desired post project morphology
Heavily modified water body	Yes
National/international site designation
Local/regional site designations
Protected species present	Yes
Invasive species present	Yes
Species of interest
Dominant hydrology	Groundwater
Dominant substrate	Gravel
River corridor land use	Intensive agriculture (arable)
Average bankfull channel width category	5 - 10 m
Average bankfull channel width (m)
Average bankfull channel depth category	0.5 - 2 m
Average bankfull channel depth (m)
Mean discharge category	0.1 - 1.0 m³/s
Mean annual discharge (m3/s)
Average channel gradient category	Less than 0.001
Average channel gradient
Average unit stream power (W/m2)

Project background

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Cost for project phases

Phase	cost category	cost exact (k€)	Lead organisation	Contact forename	Contact surname
Investigation and design
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Reasons for river restoration

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Mitigation of a pressure
Hydromorphology
Biology
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Measures

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Structural measures
Bank/bed modifications
Floodplain / River corridor
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Non-structural measures
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Monitoring

Hydromorphological quality elements

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quality elements

Element	When monitored		Type of monitoring		Control site used	Result
	Before measures	After measures	Qualitative	Quantitative

Biological quality elements

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quality elements

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Physico-chemical quality elements

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quality elements

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Any other monitoring, e.g. social, economic

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Monitoring documents

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Image gallery

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Additional links and references

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Supplementary Information

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